2308-2DCGI

Overview

The Renesas Electronics Corporation 2308-2DCGI is a high-speed phase-lock loop (PLL) clock multiplier designed for zero-delay clock distribution applications. Operating within a frequency range of 10 MHz to 133 MHz, this device multiplies the input reference clock by a factor of two. It features eight LVCMOS outputs organized into two independent banks of four, allowing for separate enable control via address pins. The component utilizes an external feedback pin to synchronize output phases with the input clock, achieving output skew of less than 200 ps and cycle-to-cycle jitter below 200 ps. It operates on a single 3.3 V supply voltage.

Feature Summary

• Zero-delay PLL architecture aligns output phase with input clock
• 2x multiplication ratio with 10 MHz to 133 MHz operating range
• Eight LVCMOS outputs in two independently enabled banks
• External feedback pin for precise delay control

Applications

• High-speed clock distribution networks
• System synchronization requiring low jitter
• Multiplication of reference clocks for digital logic

Procurement Notes

The 2308-2DCGI is identified as a discontinued product across multiple distributor records. Verification of current availability requires checking secondary market sources or obsolete inventory lists. Compliance status indicates RoHS compliance for specific variants, though users must confirm the exact revision against datasheet specifications before procurement.

Selection Notes

Select the 2308-2DCGI when a fixed 2x clock multiplication is required without programmable configuration. Ensure the design supports external feedback connections for phase alignment. Verify that the 3.3 V LVTTL/LVCMOS interface levels match the system requirements. Consider the SOIC-16 package dimensions for PCB layout constraints.

Part Context

This component belongs to the IDT 2308 family of zero-delay buffers and multipliers. It shares architectural similarities with the 2308A and 2308B series but differs in specific prescaling options. The part serves as a legacy solution for systems transitioning from lower frequency references to higher speed internal logic domains.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult manufacturer obsolescence notices for potential cross-references.